TYPES OF CONNECTIONS

Question 1

What is cellular technology?

Answer 1

Cellular communication
uses multiple antennae (cell towers) to send and receive data within relatively small
geographic regions (cells). • Calls are transferred from cell tower to cell tower as
the individual moves
• Cell phone technology is referred to in generations, 5G,4G…

Question 2

What is satellite communication?

Answer 2

Space-based devices launched into orbit to send and receive
microwave signals from earth
• Satellites can be used to send and receive large volumes of data.
• The major drawback to satellite communication is
that bad weather can
sometimes interrupt the flow of data.

Question 3

What is microwave communication?

Answer 3

Microwave communication
uses high-frequency radio waves. It is sometimes referred
to as line-of-sight
communication because microwaves can only travel in a
straight line.
• they can be transmitted only
over relatively short
distances. Thus, microwave is a good medium for sending
data between buildings in a city or on a large college
campus.

Question 4

What is WiMax (Worldwide Interoperability for Microwave

Access)

Answer 4

a new standard that
extends the range of Wi-Fi networks using microwave connections.
• WiMax is commonly used by universities and others to extend the capability of existing Wi-Fi networks.

Question 5

What are the four steps of networking?

Answer 5

• Communicating across a link
• Connecting together multiple links
(internetworking)
• Finding and routing data to nodes on
internetwork
• Matching application requirements

Question 6

What is a link?

Answer 6

path followed by bits
–Wired or wireless
–Broadcast or point-to-point (or
both)

Question 7

What are the different packet transmission modes

Answer 7

• Unicast
– Transmission to single specific receiver
• Broadcast
– Transmission to all network nodes
• Multicast
– Transmission to specific subset of nodes
• Anycast
– Transmission to one of a specific subset of
nodes

Question 8

What are the challenges faced during intranetworking?

Answer 8

• Many differences between networks
– Address formats
– Performance – bandwidth/latency
– Packet size
– Loss rate/pattern/handling
– Routing
• How to translate between various
network technologies